The "Who Killed Me? Don't Stay Silent" campaign depicts photos of Seattle victims on space-donated Clear Channel Outdoor billboards and digital network located throughout the Seattle and surrounding areas.
King County Transit buses are also part of the campaign to further increase awareness.
"Looking at those faces, Desmond's looks so sad how can you not want to do something?" wondered Marlo Williams. Her son Desmond Jackson died in February -- shot while standing by his car in the SoDo neighborhood. Desmond was 22, never in trouble -- not so much as a parking ticket.
"Desmond's murder has caused a huge impact on our family, not just the hurt and the pain we suffer but I have an eight year old son who walks in fear each and every day," Marlo Williams said.
The second face is that of Nicole Westbrook. She came to Seattle to go to school. Her life ended in Pioneer Square.
"Let everybody know, speak up, everything is anonymous," said Marcia Westbrook, Nicole's sister. "We need closure. Our families need closure."
The third face is Danny Vega. He was beaten to death by teens, possibly because he was openly gay.
"We pray to God that even if not all the murders will be solved, at least some of them will be," said Valentina Vega, Danny's sister.
In the crowd Tuesday announcing the program were others dealing with unsolved murders. They have the same hope that billboards will work.
"Murder is not OK," said Stephen Wood. "Be human enough to bring that information forward."
Those with information are asked to text "SPD" with their tip to 274637, or call Crime Stoppers at 1-800-222-TIPS. Tipsters can remain anonymous.
You can find a list of the murder victims and information about the crimes on the Seattle Police Website